Yes. I have a query per-selecting te letters from Arles.

I do this by entering the numbers of the letters which are written in Arles.

Letters in this range are from Arles.

let $range := 577 to 771

for $doc in collection('brievenvangogh')

let $uri := base-uri($doc),

$num := substring($uri, string-length($uri) - 6, 3)

where $num castable as xs:integer

and xs:integer($num) = $range

return <document uri='{$uri}'>{

for $n score $s in $doc//*[text() contains text 'gauguin']

return <hit score='{$s}'>{ $n }</hit>

}</document>

I wonder if you see a query in this line of code which could do the required action:

for $n score $s in $doc//*[text() contains text 'gauguin']

Something like: for $n score $s in $doc//*[text() contains text 'gauguin' AND contains text 'pissarro']

2011/5/20 Christian Grün <christian.gruen@gmail.com>

Wiard,

> Given the letters from Arles, how many letters have the term 'Gauguin'?
> Or: Given the letters from Arles, how many letters have the term 'Gauguin
> AND Pissarro'?

It depends on the input data. Did you manage to write a query that
pre-selects the letters from Arles?

> Can you see from the query, printed in blue, whether it gives the tf/idf
> score?
> While making the database I checked the td/idf score in the full text search
> option.

You'll have to check the query info to see if the tf/idf scoring is
used. If the compilation steps include sth like "Applying full-text
index", you can be sure that tf/idf is used as scoring. Otherwise, the
default scoring (..which often yields better results for XML
documents..) is utilized.

Hope this helps,
Christian